Editorial policy
These are the rules our content follows. They exist to keep Oil Manual genuinely useful and trustworthy.
- Owner's manual first
- The exact vehicle manual is the final authority.
- Grade and specification
- Both requirements are checked separately.
- Sources and corrections
- Primary evidence, checked dates, and a public correction path.
Neutrality
Recommendations follow the OEM specification and viscosity grade — never a brand relationship. We don't crown a "best brand" without stated criteria, and no advertiser or affiliate partner can change which oil we recommend.
No pay-to-play
We do not accept payment to alter a verdict, a comparison, or a ranking. Any sponsorship, if introduced, buys placement that is clearly labeled — never the outcome of a recommendation.
Affiliate disclosure
The site is currently education-first with no ads or affiliate links. If we add them, any link that may earn us a commission will be disclosed, recommendations will remain spec-driven, and we'll show non-affiliate or store-brand equivalents so you can compare honestly.
Safety first
Every recommendation carries this notice: Always check your owner’s manual. This guide is educational and does not replace manufacturer recommendations or mechanic advice. We avoid blanket advice, separate viscosity from specification, and flag where engine, year, climate, market, or warranty status changes the answer.
Corrections
We date our reviews and fix errors promptly. See Sources & corrections to report one.
Use of AI
We may use AI tools to help draft and structure content, but every page is held to the sourcing and accuracy standards in our methodology, with human editorial responsibility for what we publish.
Because that answer alone is easy to give and hard to verify, the production system behind it is described in full — the automated gates each page must pass, what stays unpublished until a primary source backs it, and why no reviewer is named yet. See how this reference is produced.